Registration Dossier
Registration Dossier
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EC number: 232-401-3 | CAS number: 8016-11-3
Endpoint summary
Administrative data
Description of key information
Soybean oil, epoxidised is considered to be readily biodegradable. This was proven in a study conducted by Dr. A.V. Schulthess in 1988 using OECD guideline 301B.
A ready biodegradability test was conducted on TK 11278 (otherwise known as Reoplast 39 or epoxidised soybean oil) using bacteria from a sewage treatment plant. Aniline was used as a reference substance.
After 28 days:
The biodegradation calculated as percentage of measured amount of CO2 over the theory was:
10 mg test substance/L = 79 % in 28 days
20 mg test substance/L = 92 % in 28 days
The % degradation (% ThCO2 formation) exceeded 10% within 2 to 3 days for both concentrations of the test material and subsequently exceeded the 60% pass level within the 10 day window.
Therefore, epoxidised soybean is readily biodegradable.
Read across to a study result from an investigation using a similar material is justified for members of the Epoxidised Oils and Derivatives group. Four epoxidised oils (linseed, soybean, 2-ethylhexyl tallate and fatty acids, C14-C22, 2-ethylhexylesters) have been identified as sharing common structural and functional similarities, recognised in an OECD SIDS review as a single category, and therefore justifying read-across between data for different members of the group. Consequently data sharing between ESBO epoxidised soybean oil and epoxidised linseed oil is commonly utilised in the preparation of this dossier and other read-across bridges are used for other members of the EOD group where appropriate.
Additional information
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